LTC3424

PRODUCTION

LTC3424

Low Output Voltage, 3MHz Micropower Synchronous Boost Converters

PRODUCTION

1-Cell to 1.8V at 600mA Step-Up Converter slide

1-Cell to 1.8V at 600mA Step-Up Converter

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1ku List Price Starting From $4.19

Features

1.5V to 5.5V Adjustable Output Voltage
Synchronous Rectification: Up to 95% Efficiency
1A Switch Current (LTC3423) or
2A Switch Current (LTC3424)
Fixed Frequency Operation Up to 3MHz
Wide Input Range: 0.5V to 5.5V (Operating)
Very Low Quiescent Current: 38µA (Burst Mode^® Operation)
No External Schottky Diode Required
Synchronizable Switching Frequency
Burst Mode Enable Control
OPTI-LOOP^® Compensation
Very Low Shutdown Current: <1µA
Small 10-Pin MSOP Package

Additional Details

The LTC3423 and LTC3424 are high efficiency, fixed frequency, step-up DC/DC converters that can regulate output voltages as low as 1.5V from a single cell. An applied voltage of at least 2.7V to the V_DD pin is required to power the internal control circuitry.

The devices include a 0.16Ω N-channel MOSFET switch and a 0.21Ω P-channel synchronous rectifier. The LTC3423 is intended for applications requiring less than 0.75W of output power and the LTC3424 for 1.5W or less. Switching frequencies up to 3MHz are programmed with an external timing resistor and the oscillator can be synchronized to an external clock.

Quiescent current is only 38µA in Burst Mode operation, maximizing battery life in portable applications. Burst Mode operation is user controlled and can be enabled by driving the MODE/SYNC pin high. If the MODE/SYNC pin has either a clock or is driven low then the operation is at constant fixed frequency.

Other features include a 1µA shutdown, thermal shutdown and current limit. The LTC3423 and LTC3424 are available in the 10-lead MSOP package. For applications requiring an output voltage greater than 2.6V, the LTC3401 and LTC3402 are recommended without the need of a separate voltage for the V_DD pin.

Applications

Pagers
Handheld Instruments
Cordless Phones
Wireless Handsets
GPS Receivers
Battery Backup

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Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

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Ask the ADI community for help.

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FAQs

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Part Models 2

1ku List Price Starting From $4.19

Technical Documents 4

LTC3423/LTC3424: Low Output Voltage, 3MHz Micropower Synchronous Boost Converters Data Sheet 08/28/2007

R415 Reliability Data 03/23/2018

DC516A - Demo Manual 09/24/2009

Low Output Voltage Synchronous Boost Regulators Extend Battery Life in Single Cell Applications 03/01/2002

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC3424EMS#PBF	10-Lead MSOP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC3424EMS#TRPBF	10-Lead MSOP	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTC3424EMS#PBF
Pin/Package Drawing
10-Lead MSOP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

LTC3424EMS#TRPBF
Pin/Package Drawing
10-Lead MSOP
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

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Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LTC3424EMS#PBF

PRODUCTION

LTC3424EMS#TRPBF

PRODUCTION

pdf

PCN24_0003_Form

xls

Material_Report

pdf

Qualification Results Summary

xlsm

Delta Qualification Matrix

Feb 4, 2020

- 20_0130

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3424EMS#PBF

PRODUCTION

LTC3424EMS#TRPBF

PRODUCTION

pdf

PCN20_0130_Form

xls

Material_Report

Filter by Model

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0003

Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2)

LTC3424EMS#PBF

PRODUCTION

LTC3424EMS#TRPBF

PRODUCTION

pdf

PCN24_0003_Form

xls

Material_Report

pdf

Qualification Results Summary

xlsm

Delta Qualification Matrix

Feb 4, 2020

- 20_0130

Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC

LTC3424EMS#PBF

PRODUCTION

LTC3424EMS#TRPBF

PRODUCTION

pdf

PCN20_0130_Form

xls

Material_Report

Companion Parts 2

Parts	Product Life Cycle	Description
Silicon Oscillators2
LTC6908		Resistor Set SOT-23 Oscillator with Spread Spectrum Modulation
LTC6909	PRODUCTION	1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation

DC516A-B

LTC3424EMS Demo Board | 1V ≤ VIN ≤ 1.6V, VOUT = 1.8V @ 600mA

DC516A-B

LTC3424EMS Demo Board | 1V ≤ VIN ≤ 1.6V, VOUT = 1.8V @ 600mA

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Product Detail

Demonstration circuit 516A-B is a low output voltage, synchronous boost converter featuring the LTC3424. The LTC3424 is ideal for applications that require an output voltage between 1.5V to 2.6V from a single alkaline or NiCd/NiMH cell. A bias voltage (VDD) of 2.7V to 5.5V is required to power the internal circuitry. The input voltage (V_IN) range is 1V to 1.6V, but once up and running, the device can operate with an input voltage as low as 0.5V. The output voltage is set at 1.8V. For a 1V minimum battery voltage, the LTC3424 can provide 600mA.

Resources

ZIP

DC516A - Design File

571.00K

PDF

DC516A - Schematic

13.00K

PDF

DC516A - Demo Manual

133.00K

DC516A-B

LTC3424EMS Demo Board | 1V ≤ VIN ≤ 1.6V, VOUT = 1.8V @ 600mA

LTspice 1

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To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.